Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds from the Upper Midwest into the Northeast

A prolonged atmospheric river will continue to impact the Pacific Northwest into the Northern Rockies with heavy rainfall, areas of urban and river flooding, landslides, heavy mountain snow, and gusty winds into Thursday. A strong clipper system will bring the threat of heavy snow and high winds across the Upper Midwest/Great Lakes as well as portions of the interior Northeast and Appalachians. Read More >

Current conditions at

Helmville MT-200 MP 53.3 (MTHLM)

Lat: 46.96826°NLon: 112.97487°WElev: 4199.0ft.

29°F

-2°C

Humidity	89%
Wind Speed	SSW 0 MPH
Barometer	NA
Dewpoint	26°F (-3°C)
Visibility	NA
Last update	09 Dec 11:00 PM MST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

10 Miles WNW Lincoln MT

Tonight
Low: 28 °F
Heavy Snow
Wednesday
High: 41 °F
Rain/Snow
then Rain
Wednesday Night
Low: 39 °F
Rain Likely
Thursday
High: 39 °F
Rain/Snow
Thursday Night
Low: 30 °F
Rain/Snow
then Heavy
Snow
Friday
High: 39 °F
Heavy Snow
then
Rain/Snow
Likely
Friday Night
Low: 26 °F
Chance
Rain/Snow
Saturday
High: 34 °F
Chance Snow
Saturday Night
Low: 29 °F
Mostly Cloudy

Detailed Forecast

Tonight

Snow, mainly after midnight. The snow could be heavy at times. Low around 28. West northwest wind 5 to 7 mph becoming south southeast after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 3 to 5 inches possible.

Wednesday

Rain, possibly mixed with snow, becoming all rain after 10am. The snow could be heavy at times. Snow level rising to 8100 feet in the afternoon. High near 41. West wind 10 to 14 mph, with gusts as high as 40 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

Wednesday Night

Rain likely. Cloudy, with a low around 39. West southwest wind 14 to 16 mph, with gusts as high as 41 mph. Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.

Thursday

Rain before 11am, then rain and snow. Snow level 6600 feet lowering to 5700 feet. High near 39. West southwest wind around 17 mph, with gusts as high as 43 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

Thursday Night

Rain and snow, becoming all snow after 8pm. The snow could be heavy at times. Low around 30. West wind 15 to 20 mph decreasing to 8 to 13 mph in the evening. Winds could gust as high as 36 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

Friday

Snow before 2pm, then rain likely. The snow could be heavy at times. High near 39. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

Friday Night

A chance of rain before 8pm, then a chance of rain and snow between 8pm and 2am, then a chance of snow after 2am. Snow level 6600 feet lowering to 5500 feet after midnight . Mostly cloudy, with a low around 26. Chance of precipitation is 50%. New snow accumulation of less than one inch possible.

Saturday

A chance of snow, mainly before 11am. Mostly cloudy, with a high near 34.

Saturday Night

Mostly cloudy, with a low around 29.

Sunday

A slight chance of snow before 2pm, then a slight chance of rain and snow. Partly sunny, with a high near 38.

Sunday Night

A slight chance of rain and snow. Mostly cloudy, with a low around 31.

Monday

A slight chance of rain and snow. Snow level rising to 6000 feet in the afternoon. Partly sunny, with a high near 39.

Monday Night

Rain and snow likely. Snow level 6100 feet. Mostly cloudy, with a low around 34.